Rollup merge of rust-lang#108668 - gibbyfree:stabilizedebuggervisualizer, r=wesleywiser

Stabilize debugger_visualizer

This stabilizes the `debugger_visualizer` attribute (rust-lang#95939).

* Marks the `debugger_visualizer` feature as `accepted`.
* Marks the `debugger_visualizer` attribute as `ungated`.
* Deletes feature gate test, removes feature gate from other tests.

Closes rust-lang#95939

Author: Dylan-DPC

compiler/rustc_feature/src/accepted.rs

@@ -130,6 +130,8 @@ declare_features! (
     (accepted, copy_closures, "1.26.0", Some(44490), None),
     /// Allows `crate` in paths.
     (accepted, crate_in_paths, "1.30.0", Some(45477), None),
+    /// Allows using `#[debugger_visualizer]` attribute.
+    (accepted, debugger_visualizer, "CURRENT_RUSTC_VERSION", Some(95939), None),
     /// Allows rustc to inject a default alloc_error_handler
     (accepted, default_alloc_error_handler, "1.68.0", Some(66741), None),
     /// Allows using assigning a default type to type parameters in algebraic data type definitions.

compiler/rustc_feature/src/active.rs

@@ -363,8 +363,6 @@ declare_features! (
     (active, custom_inner_attributes, "1.30.0", Some(54726), None),
     /// Allows custom test frameworks with `#![test_runner]` and `#[test_case]`.
     (active, custom_test_frameworks, "1.30.0", Some(50297), None),
-    /// Allows using `#[debugger_visualizer]`.
-    (active, debugger_visualizer, "1.62.0", Some(95939), None),
     /// Allows declarative macros 2.0 (`macro`).
     (active, decl_macro, "1.17.0", Some(39412), None),
     /// Allows default type parameters to influence type inference.

compiler/rustc_feature/src/builtin_attrs.rs

@@ -403,16 +403,16 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
         doc, Normal, template!(List: "hidden|inline|...", NameValueStr: "string"), DuplicatesOk
     ),
 
+    // Debugging
+    ungated!(
+        debugger_visualizer, Normal,
+        template!(List: r#"natvis_file = "...", gdb_script_file = "...""#), DuplicatesOk
+    ),
+
     // ==========================================================================
     // Unstable attributes:
     // ==========================================================================
 
-    // RFC #3191: #[debugger_visualizer] support
-    gated!(
-        debugger_visualizer, Normal, template!(List: r#"natvis_file = "...", gdb_script_file = "...""#),
-        DuplicatesOk, experimental!(debugger_visualizer)
-    ),
-
     // Linking:
     gated!(
         naked, Normal, template!(Word), WarnFollowing, @only_local: true,

src/doc/unstable-book/src/language-features/debugger-visualizer.md

@@ -2,7 +2,6 @@
 // ignore-lldb
 // no-prefer-dynamic
 
-#![feature(debugger_visualizer)]
 #![debugger_visualizer(natvis_file = "dependency-with-embedded-visualizers.natvis")]
 #![debugger_visualizer(gdb_script_file = "dependency-with-embedded-visualizers.py")]
 #![crate_type = "rlib"]

tests/debuginfo/auxiliary/dependency-with-embedded-visualizers.rs

@@ -60,7 +60,6 @@
 // gdb-check:$4 = "Person A" is 10 years old.
 
 #![allow(unused_variables)]
-#![feature(debugger_visualizer)]
 #![debugger_visualizer(natvis_file = "embedded-visualizer.natvis")]
 #![debugger_visualizer(gdb_script_file = "embedded-visualizer.py")]
 

tests/debuginfo/embedded-visualizer.rs

@@ -1,7 +1,6 @@
 // normalize-stderr-test: "foo.random:.*\(" -> "foo.random: $$FILE_NOT_FOUND_MSG ("
 // normalize-stderr-test: "os error \d+" -> "os error $$FILE_NOT_FOUND_CODE"
 
-#![feature(debugger_visualizer)]
 #![debugger_visualizer(random_file = "../foo.random")] //~ ERROR invalid argument
 #![debugger_visualizer(natvis_file = "../foo.random")] //~ ERROR
 fn main() {}

tests/ui/feature-gates/feature-gate-debugger-visualizer.rs

@@ -1,5 +1,5 @@
 error: invalid argument
-  --> $DIR/invalid-debugger-visualizer-option.rs:5:24
+  --> $DIR/invalid-debugger-visualizer-option.rs:4:24
    |
 LL | #![debugger_visualizer(random_file = "../foo.random")]
    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -9,7 +9,7 @@ LL | #![debugger_visualizer(random_file = "../foo.random")]
    = note: expected: `gdb_script_file = "..."`
 
 error: couldn't read $DIR/../foo.random: $FILE_NOT_FOUND_MSG (os error $FILE_NOT_FOUND_CODE)
-  --> $DIR/invalid-debugger-visualizer-option.rs:6:24
+  --> $DIR/invalid-debugger-visualizer-option.rs:5:24
    |
 LL | #![debugger_visualizer(natvis_file = "../foo.random")]
    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^